LOWA Zephyr GTX Mid TF Boot
LOWA
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The Zephyr GTX Mid TF is a mid-cut operational boot from LOWA, designed for use across varied terrain in unpredictable weather. The suede and technical fabric upper balances structure with low weight, while the GORE-TEX PROFESSIONAL lining provides waterproofing and breathability even during extended, high-intensity activity. At 1120 g per pair (UK size 8), it sits in a practical range for field service, training and hunting.
The GORE-TEX Extended Comfort Footwear membrane is optimised for warm, humid conditions: compared to standard versions, it dissipates body heat more efficiently, which reduces fatigue during long shifts or sustained marches. The benefit is most noticeable when ambient temperatures are high and the foot tends to sweat — breathability remains active even when waterproofing is needed, a combination that is not a given in this category.
The LOWA MONOWRAP® system wraps the polyurethane midsole and bonds it to the upper in a single continuous structure, distributing lateral loads more evenly than a conventional build. In practice this means greater stability on uneven ground without resorting to a rigid sole that would reduce ground feel. The LOWA CROSS rubber outsole with a self-cleaning lug pattern maintains grip in mud and loose debris. Worth noting: the mid cut provides ankle support in moderately demanding conditions, but those operating on heavily broken terrain under heavy loads may prefer a high-cut option.
Key points
- The GORE-TEX PROFESSIONAL membrane provides complete waterproofing even in heavy rain and wet vegetation.
- The GORE-TEX Extended Comfort Footwear lining dissipates heat faster than the standard version, reducing discomfort in warm conditions.
- The MONOWRAP® system bonds the upper and midsole into a single unit, increasing lateral stability without stiffening the stride.
- The LOWA CROSS outsole with self-cleaning lug pattern maintains grip on mixed surfaces: soil, wet grass, gravel and hard ground.
- Closed hooks along the instep prevent laces from snagging on branches or equipment during movement.
- At 1120 g per pair, the Zephyr GTX Mid TF sits in the lightweight operational boot category without sacrificing structural protection.
Specifications
Sizes
TROUSER SIZE GUIDE
The Viper trouser size listed on the site refers to the waist measurement in inches. To find the right size, simply check which waist measurement corresponds to your size. For example, an Italian size 46 corresponds to a 32" waist, so you should select size 32 on the site. You can also choose to measure your own waist and select the corresponding size. If your waist measurement is 90 cm, for instance, you should select the corresponding size in inches, which is 36". Contact us via chat or email with any questions. The size shown on the site corresponds to the waist measurement in inches.
| International | VIPER SIZE (waist in inches) |
Waist in CM | UK | FR | IT | ESP |
|---|---|---|---|---|---|---|
| XXS | 26-28 | 66-71 | 32 | 38 | 42 | 36 |
| XS | 28-30 | 71-76 | 34 | 40 | 44 | 40 |
| S | 30-32 | 76-81 | 36 | 42 | 46 | 44 |
| M | 32-34 | 81-86 | 38 | 44 | 48 | 48 |
| L | 34-36 | 86-91 | 40 | 46 | 50 | 52 |
| XL | 36-38 | 91-96 | 42 | 48 | 52 | 56 |
| XXL - 2XL | 38-40 | 96-101 | 44 | 50 | 54 | 60 |
| XXXL - 3XL | 40-41 | 100-104 | 46 | 52 | 56 | 64 |
| XXXXL - 4XL | 41-43 | 105-109 | 48 | 54 | 58 | 68 |
FOOTWEAR SIZE GUIDE
| TYPE | SIZES | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| EU/IT | 38 | 38.5 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46.5 | 48.5 |
| UK | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 10 | 11 | 12 | 13.5 |
| USA | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 10.5 | 11.5 | 12.5 | 14 |
| JP | 24 | 24.5 | 25 | 25.5 | 26 | 26.5 | 27.5 | 28.5 | 29.5 | 30.5 | 31.5 |
| MEX | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 9 | 10 | 11 | 12.5 |
| BR | 36 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 46 |
| AU | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 10 | 11 | 12 | 13.5 |
Marca
Lowa
Technical Footwear
Lowa manufactures footwear for operational use, hiking, and extended wear, built with deep-lug outsoles and resolable constructions on higher-end models.






